Check the cables and connections:
sure that cable connections are securely fastened to the connectors and
try reseating the connectors. If connecting a device using component
cables, make sure all three color-coded cables are connected correctly
into the corresponding connectors.
the condition and length of the cables. Cables that are longer than 3
meters (10 feet), become more susceptible to promoting signal degradation (small dots "sparkling" on the screen and image ghosting).
Cables that have been bent or pinched may also cause picture quality
problems. Replace the cable or try a different cable type.
button to display a different channel. Picture quality problems on a
single channel or on all channels may be caused by the TV station
signal (antenna) or the cable signal source.
Make sure that the image quality issue is not coming from your source signal.
example: if the image quality issues occur while viewing TV, switch the
source to a DVD player to see if the image quality problems go away.
selecting a different input source (using the remote control) causes
the problem to go away, troubleshoot the source device causing the
problem - adjust aerial antennas, call the cable company for
assistance, and .
If a picture quality problem occurs on all sources, the TV or its settings may be the cause of the problem.
Open OSD to adjust the picture:
button to open the OSD. Select the
menu and adjust the image as needed.
If you cannot adjust the TV to fix the problem, reset the settings from the OSD to see if the problem goes away.
the TV from its power source. With the power cord unplugged, press and
hold the power button for five seconds. Turn on the TV. If the image
quality problems still exists across all types of signal sources, the
TV should be serviced.
I hope it's still under warranty as something happened to one of the power supplies. Best to either take it into a qualified service shop or see what the best prices are for a tech to come to your residence for a service call. Blessings always,
A/V Media Tech Guy
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If your TV is not in Digital it won't give you the tuning option.
Select DTV from the on screen menu, (like scart 1 scart 2 etc). When
you have found DTV select it and then press menu for tuning.
Hope that helps.
Your symptom description is a little vague. Is there sound? Is there a full screen? Assuming there is a full screen and sound I would look for bad solder joints on the boards. Particularly the CRT board but really just resolder all the connections in the set. The KV series has been plagued with more than their share of bad solder joints. Give this a try first and if this doesn't solve it give us a more detailed explanation of the problem. Good luck.